Dell P57F003 Service Manual page 41

The cables on the keyboard are not folded when you receive a replacement keyboard.
Follow these instructions to fold the cables on the replacement keyboard the same
way they are folded on the old keyboard.
NOTE: Keyboard-backlight cable is present only on a backlit-keyboard.
1 Place the keyboard on a flat and clean surface.
2 Gently fold the keyboard-backlight cable till the edge of the keyboard cable as
shown in the image.
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